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Post by GrumpyUnk on Aug 19, 2024 8:42:06 GMT -5
Confused, but for sure, mixing the valves with incorrect rockers is not a recipe for success. Using the correct parts is not expensive and will work a LOT better.
I have no idea what else could be wrong as the information is confusing.
tom
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Post by GrumpyUnk on Aug 19, 2024 8:43:53 GMT -5
what is a 52.4?
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Post by GrumpyUnk on Aug 20, 2024 11:48:55 GMT -5
Do you have a new cylinder head... and new BBK? The one for 52cc the other for 50cc? If so, install the 50cc cylinder and use the original head. It will work, and have more-than-good compression if the valves are in good condition. If you use a 52cc cylinder head, it will have lower compression if used with a 50cc BBK, but should have enough to run. It will just not develop the full power it would be capable of if both parts were matched.
Clocking the piston wrong will not make it fail completely. It will just not wear as well. I think the wrist pin(gudegeon in UK and elsewhere) is a bit offset to compensate for the side-thrust a piston develops. It will still work.
Just re-read. You should have higher CR than normal using a 50mm cylinder head with a 52mm BBK. It should work.
Should this thread be closed ... as you had the incorrect valve/rocker combo? And another post indicates...FIXED???
Wasting my time?
Post the size of the BBK, cylinder head, and whether you have a correct valve/rocker match.... Your post really confused me.
tom
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Post by dirtybird860 on Aug 25, 2024 20:43:55 GMT -5
I'm sorry about confusion
Ok so I figured out what the problem was..
When I did the valve adjustment, both valve adjustment screws backed off on each of the rockers and one stem came off as well! Today i took everything apart to see if i can find it and i believe it fell in crankcase under the chain tensioner...I'm so upset and I'm going to have to get a magnetic tool and part finder and try and fish it out.
I drained oil in a bucket and didn't see it.
Please help!
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Post by dirtybird860 on Aug 25, 2024 21:03:50 GMT -5
How do I close this thread?
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Post by zerotothirty on Aug 27, 2024 19:29:48 GMT -5
How do I close this thread? That's the fun part - ITS PERMANENT |
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Post by dirtybird860 on Aug 31, 2024 16:56:57 GMT -5
Well figured it all out.
Just found the rest of stem and nuts.
After taking everything apart and trying to fish it out. it was a No go. The last nut and stem were still in the crankcase. It Was either split the crankcase or leave it. I literally said one more shot.
I Was able to hold up the scooter and shake it. Lol. It worked kinda had it indo-ing and alsomat a angle. Thought I heard a tap.
I then went in with a magnetic pickup tool from harbor frieght and grabbed It!
Got 1 stem in nut at once.
Ended up draining out the 1st one when bike was on its side, earlier In day.
But So lucky. I got what I was missing
Now it's back to installing a new 50mm bore kit. New head with bigger valves and With 24mm intake ports and 22mm exhaust.
Going to try and run my 24mm naraku carburetor -ncy says itll work with a 85cc bbk by naraku some say kits will work if they have a 47mm bbk.. or got a 50mm 83cc kit... we will see.
Going with a nibbi 42mm air filter.
Free flow exhaust high Performance
The red one you already see in it.
Once I finish fixing and panting the frame.. ima start the process of rebuilding.
In in pieces rn alot of wrk to do.
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